WO2010106194A1 - Arrangement of current regulators for led-based flexible video screens - Google Patents

Arrangement of current regulators for led-based flexible video screens Download PDF

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Publication number
WO2010106194A1
WO2010106194A1 PCT/ES2009/000011 ES2009000011W WO2010106194A1 WO 2010106194 A1 WO2010106194 A1 WO 2010106194A1 ES 2009000011 W ES2009000011 W ES 2009000011W WO 2010106194 A1 WO2010106194 A1 WO 2010106194A1
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WO
WIPO (PCT)
Prior art keywords
leds
modules
regulator
reg
regulators
Prior art date
Application number
PCT/ES2009/000011
Other languages
Spanish (es)
French (fr)
Inventor
José Vicente BOSCH ESTEVE
Original Assignee
Senia Technologies, S.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Senia Technologies, S.L. filed Critical Senia Technologies, S.L.
Priority to CN2009801088248A priority Critical patent/CN102119406A/en
Priority to EP09841775A priority patent/EP2270771A4/en
Priority to MX2010007538A priority patent/MX2010007538A/en
Priority to US12/812,256 priority patent/US20110050757A1/en
Priority to JP2011504489A priority patent/JP2011514990A/en
Priority to RU2010133487/07A priority patent/RU2486606C2/en
Priority to CA2707216A priority patent/CA2707216A1/en
Priority to BRPI0906815-5A priority patent/BRPI0906815A2/en
Priority to IL206915A priority patent/IL206915A0/en
Priority to IN2921KON2010 priority patent/IN2010KN02921A/en
Publication of WO2010106194A1 publication Critical patent/WO2010106194A1/en

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving

Definitions

  • the present invention refers to a configuration of current regulators for flexible video screens based on LEDs whose essential purpose is to facilitate a certain way of organizing a set of drivers specific analogs to facilitate the implementation of flexible video screens and enabling energy savings by allowing the consumption of LEDs to be independent based on their color.
  • video screens based on LEDs are implemented following the same general guidelines. Physically they are installed in special cabins so that the LED panels are located on the front and inside all the electronic circuitry necessary for • their operation is protected. This electronics is also usually implemented in the same way: some power supplies generate one or several low voltage voltages from the power supply network. A circuitry, usually consisting of integrated analog drivers, controls the brightness of each of the LEDs. Finally, a control electronics manages the transmission and generation of images on the screen.
  • the difficulty of implementing flexible video screens is, first of all, to integrate all the necessary electronics, including the LEDs themselves, into a Very small profile, typically in a single CL printed circuit.
  • the characteristics that this electronics must satisfy are basically those of individually controlling the brightness of each of the LEDs.
  • the implementation of the analog driver must be such that the power supply necessary for its correct operation is sufficiently reduced so that it can be effectively transported across the screen.
  • the constant current regulator or source provides a constant current to all the LEDs of a certain group.
  • Each of the LEDs is switched on or off by means of the MOS transistors connected in parallel with each of the diodes.
  • the regulator has a control input that allows the power to be interrupted when all the LEDs are off, thus reducing consumption.
  • the invention consists of a configuration of current regulators for flexible video screens based on LEDs, where the video screen has a plurality of pixels and each Pixel is composed of a red LED, a green LED and a blue LED; there are also current regulators that provide constant currents to respective groups of LEDs connected in series; and physically distributing the pixels in modules with flexible connections to each other, presenting four pixels each of said modules.
  • said regulators are applied to the corresponding groups of LEDs depending on the color of the LEDs and in numbers depending on the energy requirements of the three types of LEDs; so that there will be a first number of regulators where each regulator only applies to red LEDs, a second number of regulators where each regulator is applied only to green LEDs and a third number of regulators where each regulator is applied only to blue LEDs; thus allowing independence in consumption of LEDs according to their color.
  • said second number is established in an amount triple that of said third number, while said first number is set in an amount double that of said third number.
  • the screen is structured in linear sets of modules, each linear set being formed with six modules provided with six respective regulators; so? - that a first regulator is applied to the eight green LEDs of the two modules located further to the left of the linear assembly, a third regulator is 'applied to the eight green LEDs of the two central modules ' of the linear assembly, a Fifth regulator is applied to the eight green LEDs of the two modules located more to the right of the linear assembly, a second regulator is applied to the twelve red LEDs of the three modules located further to the left of the linear assembly, a sixth regulator is it applies to the twelve red LEDs of the three modules located more to the right of the linear set, and a fourth regulator is applied to the Twenty-four blue LEDs of the six modules of the linear set.
  • the total on time of these twenty-four blue LEDs is divided into three parts, so that in a given instant of time there are no more than eight blue LEDs lit simultaneously.
  • said second number may be set in a triple amount to that of said first number,. while the aforementioned third number can be established in an amount double that of the first number referred to.
  • the screen is structured in linear sets of modules, each linear set being formed with six modules equipped with six respective regulators, so that a first regulator is applied to the eight green LEDs of the two modules located more to the left ; the linear array, a third regulator is applied to eight 'green LEDs of the two central modules of said set, one.
  • the fifth regulator is applied to the eight green LEDs of the two modules located to the right of the linear assembly
  • a second regulator is applied to twelve blue LEDs of the three modules located to the left of the linear set
  • a sixth regulator is applied to the twelve blue LEDs of the three modules arranged more , to the right of the linear set
  • a fourth regulator is applied to the twenty four red LEDs of the six modules of the linear set.
  • the total on-time of those twenty-four red LEDs is divided into two parts, so that at a given instant of time there are no more than twelve red LEDs lit simultaneously; while the total on time of the referred twelve blue LEDs is divided so that in a certain instant of time there are no more than eight blue LEDs lit simultaneously.
  • the invention provides relative advantages in that it allows the consumption of the LEDs to be independent based on their color. In addition, it allows a linear electronics that does not use any. inductive component, so that it can be integrated into a reduced profile. With the configuration of regulators of the present invention it is possible to implement flexible video screens with consumptions similar to those of conventional rigid video screens. By means of the invention, the sum of the live voltages corresponding to the LEDs of each of the regulators offers very similar values, which means that the same supply voltage can be used for all the regulators without significant efficiency losses. in them.
  • FIGURES Figure 1 Represents an electrical diagram of a state-of-the-art driver used in screens composed of LEDs.
  • Figure 2. Schematically represents a distribution of modules and pixels used in. the configuration of the present invention.
  • Figure 3 Schematically represents a ' linear set of six modules, according to the distribution ' of the previous figure 2, including the association between regulators and diodes of the pixels, according to a preferred embodiment of the present invention.
  • Figure 4. Schematically represents a linear set of six modules, analogously to the previous figure 3, but in an alternative in which instead of two regulators for red LEDs and a regulator for blue LEDs a regulator for red LEDs is used and two regulators for blue LEDs.
  • the configuration of this example of the invention is applied in video screens having a plurality of pixels 2, each pixel being composed of a red LED R, a green LED G and a blue LED B.
  • flexible video screens consist of a plurality of modules 1 connected to each other, each of these modules having four pixels 2, as can be seen in Figure 2. Each of the modules is physically connected to the rest through flexible unions.
  • the display will have REG current regulators that provide constant currents to respective groups of LEDs, as shown in Figure 1.
  • the present example proposes a configuration like the one shown in figure 3, where in each set of six modules 1 there are three regulators, Reg IG, Reg 3G and Reg 5G that generate constant currents for groups of eight green LEDs. In addition there are two regulators, Reg 2R and Reg 6R that generate constant currents for two groups of twelve red LEDs. Finally, a single Reg 4B regulator generates a constant current for a group of the twenty-four blue LEDs of the set of six modules 1.
  • LEDs in each set of six modules 1 is the one shown in Figure 3 and described below:
  • the Reg IG regulator is connected to the green diodes Gil, G12, G21, G22, G24, G23, G14 and G13.
  • - Reg 2R regulator is connected to red diodes R22, R31, R32, R34, R33, R24, R23, R14, R13, RIl, R12 and R21.
  • the Reg 3G regulator is connected to green diodes G31, G32, G41, G42, G44, G43, G34, and G33.
  • - Reg 3B regulator is connected to blue diodes B42, B51, B52, B61, B62, B64, B63, B54, B53, B44, B43, B34, - B33, B24, B23, B14, B13, BIl 7 B12, B21, B22, B31, B32 and B41.
  • - Reg 5G regulator is connected to green diodes G51, G52, G61, G62, G64, G63, G54, and G53.
  • Reg 6R regulator is connected to the red diodes R62, R64, R63, R54, R53, R44, R43, R41, R42, R51, R52 and R61- .
  • the Reg IG regulator controls the green LEDs of the two modules 1 on the left
  • the Reg 3G controller controls the green LEDs of the two central modules
  • the Reg 5G controller controls the green LEDs. of the two modules on the right
  • the Reg 2R regulator controls the red LEDs of the three modules on the left
  • the Reg 6R regulator does the same with the red LEDs of the three modules on the right.
  • the Reg 4B regulator controls all the blue LEDs of the six modules 1; all this as represented in figure 3.
  • This configuration allows the sum of the live voltages of all the LEDs that are connected to the same regulator to present similar values in the six cases.
  • the maximum live voltage specified by the manufacturers is around four volts, which means that there is a total voltage of 32 volts when they are all on.
  • Red LEDs have a voltage drop of about 2.5 volts, resulting in a total voltage drop of 30 volts under the same circumstances.
  • the live voltage drop of the blue LEDs is similar to that of the green LEDs, but the blue LEDs in general have an excess of brightness several times higher than strictly necessary for a correct white balance in the images represented on these video screens.
  • Figure 4 An alternative to the configuration of Figure 3 has been represented in Figure 4, in which a single regulator for red LEDs and two regulators for blue LEDs are used. In this alternative, it is expected that only twelve red LEDs of the existing twenty-four are lit simultaneously, while it is also expected that only eight blue LEDs of the twelve associated with the corresponding regulator are lit.

Abstract

This arrangement has a distribution of four pixels (2) in each module (1), with a number of current regulators for respective groups of LEDs connected in series; such that the regulators are assigned to the groups of LEDs as a function of the colour of the LEDs and in numbers depending on power requirements of the three types of LEDs (R, G and B), allowing the consumption of the LEDs to be made independent according to the colour thereof.

Description

CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA PANTALLAS DECONFIGURATION OF CURRENT REGULATORS FOR SCREENS OF
VIDEO FLEXIBLES A BASE DE LED 1S 1 S LED BASED FLEXIBLE VIDEO
OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION
La presente invención, tal y como se expresa én el enunciado de esta memoria descriptiva, se refiere a una configuración de reguladores de corriente para pantallas de vídeo flexibles a base de LEDs cuya finalidad esencial consiste en facilitar una determinada forma de organizar un conjunto de drivers analógicos específicos para facilitar la implementación de pantallas de vídeo flexibles y posibilitando un ahorro energético al permitir independizar el consumo de los LEDs en función de su color. s ANTECEDENTES DE LA INVENCIÓNThe present invention, as expressed in the statement of this specification, refers to a configuration of current regulators for flexible video screens based on LEDs whose essential purpose is to facilitate a certain way of organizing a set of drivers specific analogs to facilitate the implementation of flexible video screens and enabling energy savings by allowing the consumption of LEDs to be independent based on their color. s BACKGROUND OF THE INVENTION
"""- Son conocidas las pantallas de vídeo flexibles compuestas a base de diodos LEDs, formándose estas pantallas mediante una matriz regular de diodos LEDs, que constituye el mecanismo más eficaz para construir pantallas de grandes dimensiones. "" "- Flexible composite video screens based on LEDs are known, these screens being formed by a regular array of LEDs, which is the most effective mechanism for building large screens.
En la práctica, las pantallas de vídeo a base de diodos LEDs se implementan siguiendo unas mismas directrices generales. Físicamente se instalan en cabinas especiales de forma que en la parte frontal se sitúan los paneles de LEDs y en su interior se encuentra protegida toda la circuitería electrónica necesaria para • su funcionamiento. Esta electrónica también se suele implementar de la misma forma: unas fuentes de alimentación generan una o varias tensiones de bajo voltaje a partir de la red de alimentación. Una circuitería, habitüalmente constituida por drivers analógicos integrados controla la luminosidad de cada uno de los LEDs. Finalmente una electrónica de control gestiona la transmisión y generación de imágenes en pantalla.In practice, video screens based on LEDs are implemented following the same general guidelines. Physically they are installed in special cabins so that the LED panels are located on the front and inside all the electronic circuitry necessary for • their operation is protected. This electronics is also usually implemented in the same way: some power supplies generate one or several low voltage voltages from the power supply network. A circuitry, usually consisting of integrated analog drivers, controls the brightness of each of the LEDs. Finally, a control electronics manages the transmission and generation of images on the screen.
La dificultad de implementar pantallas de vídeo flexibles estriba, en primer lugar, en integrar toda la electrónica necesaria, incluyendo los propios LEDs, en un perfil muy reducido, típicamente en un CL único circuito impreso. Las características que debe satisfacer esta electrónica son '• básicamente las de controlar individualmente la luminosidad de cada uno de los LEDs. En segundo lugar, la implementación del driver analógico ha de ser tal que haga que la corriente de alimentación necesaria para su correcto funcionamiento sea lo suficientemente reducida para que ésta pueda ser eficazmente- transportada a lo largo y ancho de la pantalla. Hay que tener en cuenta que para solucionar este problema no es posible introducir convertidores dc/dc en los reducidos perfiles que requieren las pantallas de vídeo flexibles, ni tampoco es posible emplear conductores de grandes secciones para transportarThe difficulty of implementing flexible video screens is, first of all, to integrate all the necessary electronics, including the LEDs themselves, into a Very small profile, typically in a single CL printed circuit. The characteristics that this electronics must satisfy are basically those of individually controlling the brightness of each of the LEDs. Secondly, the implementation of the analog driver must be such that the power supply necessary for its correct operation is sufficiently reduced so that it can be effectively transported across the screen. Keep in mind that to solve this problem it is not possible to introduce dc / dc converters in the small profiles that require flexible video screens, nor is it possible to use large section conductors to transport
1 estas corrientes. Por otra parte, es conocido el driver analógico cuyo esquema eléctrico se representa en la figura 1 de esta memoria, perteneciente al estado de la técnica y similar al descrito en la patente US 4.473.897.1 these currents. On the other hand, the analog driver whose electrical scheme is represented in Figure 1 of this memory is known, belonging to the state of the art and similar to that described in US Patent 4,473,897.
En ese driver de la figura 1, el regulador o fuente de corriente constante proporciona una corriente constante a todos los LEDs de un determinado grupo . Cada uno de los LEDs se enciende o apaga por medio de los transistores MOS conectados en paralelo con cada uno de los diodos . El regulador posee una entrada de control que permite interrumpir la corriente cuando todos los LEDs están apagados, reduciéndose así el consumo.In that driver of Figure 1, the constant current regulator or source provides a constant current to all the LEDs of a certain group. Each of the LEDs is switched on or off by means of the MOS transistors connected in parallel with each of the diodes. The regulator has a control input that allows the power to be interrupted when all the LEDs are off, thus reducing consumption.
El número de LEDs que pueden conectarse en serie para un driver como el de la figura 1 viene limitado en la práctica por la tensión puerta surtidor máxima de los transistores. La suma de tensiones en directo de todos losThe number of LEDs that can be connected in series for a driver like the one in Figure 1 is limited in practice by the maximum supply gate voltage of the transistors. The sum of live tensions of all
LEDs, en el peor de los casos, ha de ser tal que haga que la tensión en la puerta de los transistores no supere ese valor máximo bajo ninguna circunstancia.LEDs, in the worst case, must be such that the voltage at the transistors door does not exceed that maximum value under any circumstances.
No conocemos en el estado actual de la técnica configuraciones de reguladores de corriente para pantallas de vídeo flexibles en las que se independice el consumo de los LEDs según su color, tal y como lo hace la presente invención.We do not know in the current state of the art configurations of current regulators for screens Flexible video in which the consumption of the LEDs becomes independent according to their color, just as the present invention does.
DESCRIPCIÓN DE LA INVENCIÓN Para lograr los objetivos y evitar los inconvenientes indicados en anteriores apartados, la invención consiste en una configuración de reguladores de corriente para pantallas de vídeo flexibles a base de LEDs, donde la pantalla de vídeo cuenta con una pluralidad de pixeles y cada pixel está compuesto por un LED rojo, un LED verde y un LED azul; existiendo además unos reguladores de corriente que proporcionan corrientes constantes a respectivos grupos de LEDs conectados en serie; y distribuyéndose físicamente los pixeles en módulos con uniones flexibles entre sí, presentando cuatro pixeles cada uno de dichos módulos.DESCRIPTION OF THE INVENTION To achieve the objectives and avoid the inconveniences indicated in previous sections, the invention consists of a configuration of current regulators for flexible video screens based on LEDs, where the video screen has a plurality of pixels and each Pixel is composed of a red LED, a green LED and a blue LED; there are also current regulators that provide constant currents to respective groups of LEDs connected in series; and physically distributing the pixels in modules with flexible connections to each other, presenting four pixels each of said modules.
Novedosamente, según la invención, los referidos reguladores se aplican a los grupos de ' LEDs correspondientes en función del color de los LEDs y en números dependientes a requerimientos energéticos de los tres tipos de LEDs; de manera que se tendrá un primer número de reguladores donde cada regulador solo se aplica a LEDs rojos, un segundo número de reguladores donde cada regulador se aplica solo a LEDs verdes y un tercer número de reguladores donde cada regulador se aplica solo a LEDs azules; permitiendo así independizar en consumo de los LEDs según su color.Novelly, according to the invention, said regulators are applied to the corresponding groups of LEDs depending on the color of the LEDs and in numbers depending on the energy requirements of the three types of LEDs; so that there will be a first number of regulators where each regulator only applies to red LEDs, a second number of regulators where each regulator is applied only to green LEDs and a third number of regulators where each regulator is applied only to blue LEDs; thus allowing independence in consumption of LEDs according to their color.
Según una realización preferente de la invención, el referido segundo número se establece en una cantidad' triple a la del referido tercer número, en tanto que el aludido primer número se establece en una cantidad doble a la del referido tercer número.According to a preferred embodiment of the invention, said second number is established in an amount triple that of said third number, while said first number is set in an amount double that of said third number.
Además, en esa realización preferente de la invención, la pantalla se estructura en conjuntos lineales de módulos, formándose cada conjunto lineal con seis módulos dotados de seis respectivos reguladores; de manera?- que un primer regulador se aplica a los ocho LEDs verdes de los dos módulos dispuestos más a la izquierda del conjunto lineal, un tercer regulador se' aplica a los ocho LEDs verdes de los dos módulos centrales' del conjunto lineal, un quinto regulador se aplica a los ocho LEDs verdes de los dos módulos dispuestos más a la derecha del conjunto lineal, un segundo regulador se aplica a los doce LEDs rojos » de los tres módulos dispuestos más a la izquierda del conjunto lineal, un sexto regulador se aplica a los doce LEDs rojos de los tres módulos dispuestos más a la derecha del conjunto lineal, y un cuarto regulador se aplica a los Veinticuatro LEDs azules de los seis módulos del conjunto lineal . Por otra parte, en esta realización preferente el •tiempo total de encendido de esos veinticuatro LEDs azules, se divide en tres partes, de manera que en un determinado instante de tiempo no haya más de ocho ¡ LEDs azules encendidos simultáneamente. Según una alternativa a la referida realización preferente el referido segundo número puede establecerse en una cantidad triple a la del referido primer ríúmero, . en tanto que el aludido tercer número se puede establecer en una cantidad doble a la del referido primer número. En esta alternativa la pantalla se estructura en conjuntos lineales de módulos, formándose cada conjunto lineal con seis módulos dotados de seis respectivos reguladores, de manera que un primer regulador se aplica a los ocho LEDs verdes de los dos módulos dispuestos más a la izquierda ;del conjunto lineal, un tercer regulador se aplica a los ocho' LEDs verdes de los dos módulos centrales de dicho conjunto, un. quinto regulador se aplica a los ocho LEDs verdes dé los dos módulos dispuestos más a la derecha del conjunto lineal, un segundo regulador se aplica a doce LEDs azules de los tres módulos dispuestos más a la izquierda del conjunto lineal, un sexto regulador se aplica a los doce LEDs azules de los tres módulos dispuestos más, a la derecha del conjunto lineal, y un cuarto regulador se aplica a los veinticuatro LEDs rojos de los seis módulos del conjunto lineal. Además, en esta alternativa, el tiempo total de^ encendido de esos veinticuatro LEDs rojos se divide en dos partes, de manera que en un determinado instante de tiempo no haya más de doce LEDs rojos encendidos simultáneamente; en tanto que el tiempo total de encendido de los referidos doce LEDs azules se divide de manera que en un determinado instante de tiempo no haya más de ocho LEDs azules encendidos simultáneamente.In addition, in that preferred embodiment of the invention, the screen is structured in linear sets of modules, each linear set being formed with six modules provided with six respective regulators; so? - that a first regulator is applied to the eight green LEDs of the two modules located further to the left of the linear assembly, a third regulator is 'applied to the eight green LEDs of the two central modules ' of the linear assembly, a Fifth regulator is applied to the eight green LEDs of the two modules located more to the right of the linear assembly, a second regulator is applied to the twelve red LEDs of the three modules located further to the left of the linear assembly, a sixth regulator is it applies to the twelve red LEDs of the three modules located more to the right of the linear set, and a fourth regulator is applied to the Twenty-four blue LEDs of the six modules of the linear set. On the other hand, in this preferred embodiment, the total on time of these twenty-four blue LEDs is divided into three parts, so that in a given instant of time there are no more than eight blue LEDs lit simultaneously. According to an alternative to said preferred embodiment, said second number may be set in a triple amount to that of said first number,. while the aforementioned third number can be established in an amount double that of the first number referred to. In this alternative the screen is structured in linear sets of modules, each linear set being formed with six modules equipped with six respective regulators, so that a first regulator is applied to the eight green LEDs of the two modules located more to the left ; the linear array, a third regulator is applied to eight 'green LEDs of the two central modules of said set, one. fifth regulator is applied to the eight green LEDs of the two modules located to the right of the linear assembly, a second regulator is applied to twelve blue LEDs of the three modules located to the left of the linear set, a sixth regulator is applied to the twelve blue LEDs of the three modules arranged more , to the right of the linear set, and a fourth regulator is applied to the twenty four red LEDs of the six modules of the linear set. In addition, in this alternative, the total on-time of those twenty-four red LEDs is divided into two parts, so that at a given instant of time there are no more than twelve red LEDs lit simultaneously; while the total on time of the referred twelve blue LEDs is divided so that in a certain instant of time there are no more than eight blue LEDs lit simultaneously.
Según la estructura que se ha descrito, la invención proporciona ventajas relativas a que permite independizar el consumo de los LEDs en función de su color. Además, permite una electrónica lineal que no emplea ningún. componente inductivo, de manera que se puede integrar en un perfil reducido. Con la configuración de reguladores de la presente invención se posibilita la implementación de pantallas de vídeo flexibles con consumos similares a los de las pantallas de vídeo rígidas convencionales. Mediante la invención, la suma de las tensiones en directo correspondientes a los LEDs de cada uno de los reguladores ofrece valores muy similares, lo que significa que se puede emplear una misma tensión de alimentación para todos los reguladores sin que se produzcan pérdidas significativas de eficiencia en los mismos.According to the structure described, the invention provides relative advantages in that it allows the consumption of the LEDs to be independent based on their color. In addition, it allows a linear electronics that does not use any. inductive component, so that it can be integrated into a reduced profile. With the configuration of regulators of the present invention it is possible to implement flexible video screens with consumptions similar to those of conventional rigid video screens. By means of the invention, the sum of the live voltages corresponding to the LEDs of each of the regulators offers very similar values, which means that the same supply voltage can be used for all the regulators without significant efficiency losses. in them.
Estadísticamente, la mayor parte de los LEDs para una misma componente de color que forman los pixeles de una imagen suelen reproducir valores de intensidades luminosas similares a los de sus LEDs vecinos más próximos, de manera, que teniendo en cuenta esta propiedad se posibilita una reducción en el consumo muy significativa si se emplea una configuración como la que se ha descrito en este apartado. Con dicha configuración se independiza el consumo en cada una de las tres componentes de color y se reparten eficazmente las caídas de tensión, permitiéndose además la integración en una pantalla de perfil muy reducido.Statistically, most of the LEDs for the same color component that form the pixels of an image usually reproduce values of luminous intensities similar to those of their nearest neighboring LEDs, so that taking into account this property a reduction is possible in very significant consumption if a configuration such as the one described in this section is used. With this configuration, consumption is independent in each one of the three color components and voltage drops are effectively distributed, also allowing integration into a very small profile screen.
A continuación, para facilitar una mejor comprensión de esta memoria descriptiva y formando parte integrante de' la misma, se acompañan unas figuras en las que con carácter ilustrativo y no limitativo se ha representado el objeto de la invención, así como parte del estado de la técnica.Next, to facilitate a better understanding of this descriptive report and forming an integral part thereof, some figures are attached in which the object of the invention has been shown as an illustrative and non-limiting nature, as well as part of the state of the technique.
BREVE DESCRIPCIÓN DE LAS FIGURAS Figura 1. - Representa, un esquema eléctrico de un driver del estado de la técnica empleado en pantallas compuestas por LEDs .BRIEF DESCRIPTION OF THE FIGURES Figure 1. - Represents an electrical diagram of a state-of-the-art driver used in screens composed of LEDs.
Figura 2. - Representa esquemáticamente una distribución de módulos y pixeles empleada en. la configuración de la presente invención.Figure 2. - Schematically represents a distribution of modules and pixels used in. the configuration of the present invention.
Figura 3.- Representa esquemáticamente un conjunto' lineal de seis módulos, según la distribución' de la anterior figura 2, incluyéndose la asociación entre reguladores y diodos de los pixeles, según una realización preferente de la presente invención.Figure 3.- Schematically represents a ' linear set of six modules, according to the distribution ' of the previous figure 2, including the association between regulators and diodes of the pixels, according to a preferred embodiment of the present invention.
Figura 4.- Representa esquemáticamente un conjunto lineal de seis módulos, de manera análoga a la anterior figura 3, pero en una alternativa en la que en vez de dos reguladores para LEDs rojos y un regulador para LEDs azules se emplea un regulador para LEDs rojos y dos reguladores para LEDs azules .Figure 4.- Schematically represents a linear set of six modules, analogously to the previous figure 3, but in an alternative in which instead of two regulators for red LEDs and a regulator for blue LEDs a regulator for red LEDs is used and two regulators for blue LEDs.
DESCRIPCIÓN DE UN EJEMPLO DE REALIZACIÓN DE LA INVENCIÓNDESCRIPTION OF AN EXAMPLE OF EMBODIMENT OF THE INVENTION
Seguidamente se realiza una descripción de un ejemplo de la invención haciendo referencia - a la numeración adoptada en las figuras.Next, a description of an example of the invention is made with reference - to the numbering adopted in the figures.
Así, la configuración de este ejemplo de- la invención, se aplica en pantallas de vídeo que presentan una pluralidad de pixeles 2, estando cada pixel compuesto por un LED rojo R, un LED verde G y un LED azul B. En esta aplicación, las pantallas de vídeo flexibles consisten en una pluralidad de módulos 1 conectados entre sí, presentando cada uno de estos módulos cuatro pixeles 2, tal y como puede apreciarse en la figura 2. Cada uno de los módulos se mantiene físicamente conectado con el resto a través de uniones flexibles.Thus, the configuration of this example of the invention is applied in video screens having a plurality of pixels 2, each pixel being composed of a red LED R, a green LED G and a blue LED B. In this application, flexible video screens consist of a plurality of modules 1 connected to each other, each of these modules having four pixels 2, as can be seen in Figure 2. Each of the modules is physically connected to the rest through flexible unions.
En total hay doce LEDs en cada uno de los módulos 1.In total there are twelve LEDs in each of the modules 1.
Además, la pantalla tendrá unos reguladores de corriente REG que proporcionan corrientes constantes a respectivos grupos de LEDs, según se muestra en la figura 1.In addition, the display will have REG current regulators that provide constant currents to respective groups of LEDs, as shown in Figure 1.
Podría pensarse en conectar los doce LEDs de cada módulo 1 a un regulador de corriente correspondiente, pero se .daría la desventaja de que habría dependencias de consumo de los LEDs correspondientes a las componentes de color, es decir, no sería posible separar el consumo de los LEDs de una componente de color de forma independiente respecto de las otras dos.One could think of connecting the twelve LEDs of each module 1 to a corresponding current regulator, but the disadvantage would be that there would be consumption dependencies of the LEDs corresponding to the color components, that is, it would not be possible to separate the consumption of the LEDs of a color component independently from the other two.
Para esa independización, el presente ejemplo propone una configuración como la representada en la figura 3, donde en cada conjunto de seis módulos 1 hay tres reguladores, Reg IG, Reg 3G y Reg 5G que generan corrientes constantes para grupos de ocho LEDs verdes . Además hay dos reguladores, Reg 2R y Reg 6R que generan corrientes constantes para dos grupos de doce LEDs rojos. Finalmente un único regulador Reg 4B genera una corriente constante para un grupo de los veinticuatro LEDs azules del conjunto de seis módulos 1.For this independence, the present example proposes a configuration like the one shown in figure 3, where in each set of six modules 1 there are three regulators, Reg IG, Reg 3G and Reg 5G that generate constant currents for groups of eight green LEDs. In addition there are two regulators, Reg 2R and Reg 6R that generate constant currents for two groups of twelve red LEDs. Finally, a single Reg 4B regulator generates a constant current for a group of the twenty-four blue LEDs of the set of six modules 1.
Una forma sencilla, entre otras muchas posibles, de conectar los seis reguladores a los setenta y dos diodosA simple way, among many other possible, to connect the six regulators to seventy-two diodes
LEDs en cada conjunto de seis módulos 1 es la que muestra la figura 3 y que se describe a continuación:LEDs in each set of six modules 1 is the one shown in Figure 3 and described below:
- El regulador Reg IG se conecta a los diodos verdes Gil, G12, G21, G22, G24, G23, G14 y G13. - El regulador Reg 2R se conecta a los diodos rojos R22, R31, R32, R34, R33, R24, R23, R14, R13 , RIl, R12 y R21.- The Reg IG regulator is connected to the green diodes Gil, G12, G21, G22, G24, G23, G14 and G13. - Reg 2R regulator is connected to red diodes R22, R31, R32, R34, R33, R24, R23, R14, R13, RIl, R12 and R21.
- El regulador Reg 3G se conecta a los diodos verdes G31, G32, G41, G42, G44, G43, G34, y G33.- The Reg 3G regulator is connected to green diodes G31, G32, G41, G42, G44, G43, G34, and G33.
- El regulador Reg 3B se conecta a los diodos azules B42, B51, B52, B61, B62, B64, B63, B54, B53 , B44, B43, B34,- B33, B24, B23, B14, B13, BIl7 B12, B21, B22, B31, B32 y B41. - El regulador Reg 5G se conecta a los diodos verdes G51, G52, G61, G62, G64, G63, G54, y G53.- Reg 3B regulator is connected to blue diodes B42, B51, B52, B61, B62, B64, B63, B54, B53, B44, B43, B34, - B33, B24, B23, B14, B13, BIl 7 B12, B21, B22, B31, B32 and B41. - Reg 5G regulator is connected to green diodes G51, G52, G61, G62, G64, G63, G54, and G53.
- El regulador Reg 6R se conecta a los diodos rojos R62, R64, R63, R54, R53 , R44, R43, R41, R42, R51, R52 y R61-.. Así, el regulador Reg IG controla los LEDs verdes de los dos módulos 1 de la izquierda, el regulador Reg 3G controla los LEDs verdes de los dos módulos centrales, mientras que el regulador Reg 5G controla los LEDs verdes. de los dos módulos de la derecha. El regulador Reg 2R controla los LEDs rojos de los tres módulos de la izquierda, mientras que el regulador Reg 6R hace lo mismo con los LEDs rojos de los tres módulos de la derecha. Finalmente, el regulador Reg 4B controla todos los LEDs azules de los seis módulos 1; todo ello según queda representado en la figura 3.- Reg 6R regulator is connected to the red diodes R62, R64, R63, R54, R53, R44, R43, R41, R42, R51, R52 and R61- .. Thus, the Reg IG regulator controls the green LEDs of the two modules 1 on the left, the Reg 3G controller controls the green LEDs of the two central modules, while the Reg 5G controller controls the green LEDs. of the two modules on the right. The Reg 2R regulator controls the red LEDs of the three modules on the left, while the Reg 6R regulator does the same with the red LEDs of the three modules on the right. Finally, the Reg 4B regulator controls all the blue LEDs of the six modules 1; all this as represented in figure 3.
Esta configuración permite que la suma de las tensiones en directo de todos los LEDs que se conectan a un mismo regulador presenten valores similares en los seis casos . Para los LEDs verdes la tensión en directo máxima especificada por los fabricantes se encuentra alrededor de los cuatro voltios, lo que significa que se tiene una tensión total de 32 voltios cuando se encuentran todos encendidos. Los LEDs rojos presentan una caída de tensión de alrededor de 2,5 voltios, lo que resulta en una caída de tensión total de 30 voltios en las mismas circunstancias. Por otra parte, la caída de tensión en directo de los LEDs azules es similar a la de los LEDs verdes, pero los LEDs azules presentan en general un exceso de luminosidad varias veces superior al estrictamente necesario para un correcto balance de blancos en las imágenes representadas en estas pantallas de vídeo. Se puede aprovechar esta peculiaridad para dividir el tiempo total de encendido de los LEDs azules en tres partes, de manera que en un determinado instante de tiempo no haya más de ocho encendidos simultáneamente. Así, tal y como sucede con los LEDs verdes, se obtendrá una suma de tensiones máxima de 32 voltios para los LEDs azules.This configuration allows the sum of the live voltages of all the LEDs that are connected to the same regulator to present similar values in the six cases. For green LEDs the maximum live voltage specified by the manufacturers is around four volts, which means that there is a total voltage of 32 volts when they are all on. Red LEDs have a voltage drop of about 2.5 volts, resulting in a total voltage drop of 30 volts under the same circumstances. On the other hand, the live voltage drop of the blue LEDs is similar to that of the green LEDs, but the blue LEDs in general have an excess of brightness several times higher than strictly necessary for a correct white balance in the images represented on these video screens. You can take advantage of this peculiarity to divide the total on time of the blue LEDs into three parts, so that at a certain instant of time there are no more than eight lights simultaneously. Thus, as with the green LEDs, a maximum voltage sum of 32 volts will be obtained for the blue LEDs.
Las pantallas de vídeo flexibles implementadas siguiendo esta configuración se deberán realizar a base de grupos de seis módulos como los representados en la figura 3.Flexible video screens implemented following this configuration should be made based on groups of six modules as shown in Figure 3.
En definitiva, con la solución presentada se independiza el consumo en cada una de las tres componentes de color y se reparte eficazmente al mismo tiempo las caídas de tensión de los setenta y dos LEDs que hay en los seis módulos entre seis reguladores, siendo todo ello fácilmente integrable en una pantalla de vídeo de perfil muy reducido.In short, with the solution presented, consumption is independent in each of the three color components and the voltage drops of the seventy-two LEDs that are in the six modules between six regulators are effectively distributed at the same time. easily integrated into a very small profile video screen.
Una alternativa a la configuración de la figura 3 se ha representado en la figura 4, en la que se emplea un único regulador para LEDs rojos y dos reguladores para LEDs azules. En esta alternativa se prevé que únicamente se encuentren encendidos simultáneamente doce LEDs rojos de los veinticuatro existentes, mientras que también se prevé que únicamente se encuentren encendidos ocho LEDs azules de los doce asociados al regulador correspondiente. La conveniencia de la configuración de la figura 3 o la de ' la figura 4 depende únicamente de las características de los LEDs empleados dadas por el fabricante. An alternative to the configuration of Figure 3 has been represented in Figure 4, in which a single regulator for red LEDs and two regulators for blue LEDs are used. In this alternative, it is expected that only twelve red LEDs of the existing twenty-four are lit simultaneously, while it is also expected that only eight blue LEDs of the twelve associated with the corresponding regulator are lit. The convenience of the configuration of Figure 3 or that 'figure 4 only depends on the characteristics of the LEDs used given by the manufacturer.

Claims

REIVINDICACIONES
1.- CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED1S donde la pantalla de vídeo cuenta con una pluralidad de pixeles (2) y cada pixel está compuesto por un LED rojo (R) , un LED verde (G) y un LED azul (B) ; existiendo además unos reguladores de corriente (Reg) que proporcionan corrientes constantes a respectivos grupos de LEDs conectados en serie; y distribuyéndose físicamente los pixeles (2) en módulos (1) con uniones flexibles entre sí, presentando cuatro pixeles (2) cada uno de dichos módulos (1) ; caracterizada porque dichos reguladores (Reg) se aplican a los grupos de LEDs correspondientes en función del color de los_ LEDs y en números dependientes a requerimientos energéticos de los tres tipos de LEDs; de manera que se tendrá un primer número de reguladores donde cada regulador solo se aplica a LEDs rojos (R) , un segundo número de reguladores donde cada regulador se aplica solo a LEDs verdes (G) y un tercer número de reguladores donde cada regulador solo se aplica a LEDs azules (B) ; permitiendo así independizar el consumo de los LEDs según su color.1.- CONFIGURATION OF CURRENT REGULATORS FOR VIDEO SCREENS FLEXIBLE TO LED BASE 1 S where the video screen has a plurality of pixels (2) and each pixel is composed of a red LED (R), a green LED ( G) and a blue LED (B); there are also current regulators (Reg) that provide constant currents to respective groups of LEDs connected in series; and physically distributing the pixels (2) in modules (1) with flexible connections to each other, presenting four pixels (2) each of said modules (1); characterized in that said regulators (Reg) are applied to the corresponding LED groups depending on the color of the LEDs and in numbers depending on the energy requirements of the three types of LEDs; so that there will be a first number of regulators where each regulator only applies to red LEDs (R), a second number of regulators where each regulator is applied only to green LEDs (G) and a third number of regulators where each regulator only It applies to blue LEDs (B); thus allowing independent consumption of LEDs according to their color.
2. - CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED1S, según la reivindicación 1, caracterizada porque dicho segundo número se establece en una cantidad triple a la del referido tercer número, en tanto que el aludido primer número se establece en una cantidad doble a la del referido tercer número .2. - CONFIGURATION OF CURRENT REGULATORS FOR FLEXIBLE SCREEN VIDEO SCREENS BASED ON 1 S LED, according to claim 1, characterized in that said second number is set at a triple amount to that of said third number, while said first number it is established in an amount double that of the said third number.
3. - CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED1S, según la reivindicación 2, caracterizada porque la. pantalla se estructura en conjuntos lineales de módulos (1) , formándose cada conjunto lineal con seis módulos (1) dotados de seis respectivos reguladores; de manera que un primer regulador (Reg IG) se aplica a los ocho LEDs verdes de los dos módulos (1) dispuestos más a la izquierda del conjunto lineal, un tercer regulador (Reg 3G) se aplica a los ocho LEDs verdes de los dos módulos (1) centrales del conjunto lineal, un quinto regulador (Reg 5G) es aplica a los ocho LEDs verdes de los dos módulos (1) dispuestos más a la derecha del conjunto lineal, un segundo regulador (Reg 2R) se aplica a los doce LEDs rojos de los tres módulos (1) dispuestos más a la izquierda del conjunto lineal, un sexto regulador (Reg 6R) se aplica a los doce LEDs rojos de los tres módulos (1) dispuestos más a la derecha del conjunto lineal, y un cuarto regulador (Reg 4b) se aplica a los veinticuatro LEDs azules de los seis módulos (1) del conjunto lineal.3. - CONFIGURATION OF CURRENT REGULATORS FOR FLEXIBLE VIDEO SCREENS BASED ON 1 S LED, according to claim 2, characterized in that the. The screen is structured in linear sets of modules (1), each linear set being formed with six modules (1) equipped with six respective regulators; so that a first regulator (Reg IG) is applied to the eight green LEDs of the two modules (1) arranged further to the left of the linear set, a third controller (Reg 3G) is applied to the eight green LEDs of the two central modules (1) of the linear set, a fifth controller (Reg 5G) is applied to the Eight green LEDs of the two modules (1) arranged more to the right of the linear assembly, a second regulator (Reg 2R) is applied to the twelve red LEDs of the three modules (1) arranged more to the left of the linear assembly, a Sixth regulator (Reg 6R) is applied to the twelve red LEDs of the three modules (1) located more to the right of the linear set, and a fourth regulator (Reg 4b) is applied to the twenty four blue LEDs of the six modules (1 ) of the linear set.
--v 4. - CONFIGURACIÓN DE REGULADORES DE CORRIENTE . PARA PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED1S, según la reivindicación 3, caracterizada porque el tiempo total de encendido de esos veinticuatro LEDs azules se divide en tres partes, de manera que en un determinado instante de tiempo no haya más de ocho LEDs azules encendidos simultáneamente.--v 4. - CURRENT REGULATOR CONFIGURATION . FOR FLEXIBLE VIDEO SCREENS BASED ON 1 S LED, according to claim 3, characterized in that the total on time of those twenty-four blue LEDs is divided into three parts, so that in a given instant of time there are no more than eight LEDs blue lit simultaneously.
5. - CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED 'S, según la reivindicación 1, caracterizada porque dicho segundo número se establece en una cantidad triple a la del referido primer número, en tanto que el aludido tercer número se establece en una cantidad doble a la del referido primer número .5. - CONFIGURATION OF CURRENT REGULATORS FOR FLEXIBLE VIDEO SCREENS BASED ON LED 'S, according to claim 1, characterized in that said second number is set at a triple amount to that of said first number, while the aforementioned third number it is established in an amount double that of the first number referred to.
6. - CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED1S1 según la 0 reivindicación 5, caracterizada porque la pantalla se estructura en conjuntos lineales de módulos (1) , formándose cada conjunto lineal con seis módulos (1) dotados de seis respectivos reguladores; de manera que un primer regulador (Reg IG) se aplica a los ocho LEDs verdes de los dos R módulos (l) disOuestos más a la izσuierda del conjunto lineal, un tercer regulador (Reg 3G) se aplica a los ocho, LEDs verdes de los dos módulos centrales del referido conjunto, un quinto regulador (Reg 5G) se aplica a los ocho LEDs verdes de los dos módulos (1) dispuestos más a la derecha del conjunto lineal, un segundo regulador (Reg 2B) se aplica a los doce LEDs azules de los tres módulos (l) dispuestos más a la izquierda del conjunto lineal, un sexto regulador (Reg 6B) se aplica a los doce LEDs azules de los' tres módulos (1) dispuestos más a la derecha del conjunto lineal, y un cuarto regulador (Reg 4R) se aplica a los veinticuatro LEDs rojos de los seis módulos (1) del conjunto lineal.6. - CONFIGURATION OF CURRENT REGULATORS FOR FLEXIBLE VIDEO SCREENS BASED ON LEDS 1 S 1 according to 0 claim 5, characterized in that the screen is structured in linear sets of modules (1), each linear set being formed with six modules (1 ) equipped with six respective regulators; so that a first regulator (Reg IG) is applied to the eight green LEDs of the two R modules (l) located further to the left of the assembly linear, a third regulator (Reg 3G) is applied to the eight, green LEDs of the two central modules of the referred set, a fifth regulator (Reg 5G) is applied to the eight green LEDs of the two modules (1) arranged more to to the right of the linear set, a second regulator (Reg 2B) is applied to the twelve blue LEDs of the three modules (l) arranged further to the left of the linear set, a sixth regulator (Reg 6B) is applied to the twelve blue LEDs 'three modules (1) arranged rightmost of the linear array, and the fourth regulator (Reg 4R) is applied to twenty four red LEDs of the six modules (1) of the linear array.
7. - CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA7. - CONFIGURATION OF CURRENT REGULATORS FOR
1one
PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED1S, según la reivindicación 6, caracterizada porque el tiempo total de encendido de esos veinticuatro LEDs rojos se divide en dos partes, de manera que en un determinado instante de tiempo no haya más de doce LEDs rojos encendidos simultáneamente.FLEXIBLE VIDEO SCREENS BASED ON 1 S LED, according to claim 6, characterized in that the total on time of those twenty-four red LEDs is divided into two parts, so that at a given moment of time there are no more than twelve red LEDs turned on simultaneously.
8.- CONFIGURACIÓN DE REGULADORES DE CORRIENTE PARA PANTALLAS DE VIDEO FLEXIBLES A BASE DE LED1S, según la reivindicación 6, caracterizada porque el tiempo total de encendido de esos doce LEDs azules se divide de manera que en un determinado instante de tiempo no haya más de ocho LEDs azules encendidos simultáneamente. 8.- CONFIGURATION OF CURRENT REGULATORS FOR FLEXIBLE VIDEO SCREENS BASED ON 1 S LED, according to claim 6, characterized in that the total on time of those twelve blue LEDs is divided so that at a certain time there is no more than eight blue LEDs lit simultaneously.
PCT/ES2009/000011 2008-01-11 2009-01-12 Arrangement of current regulators for led-based flexible video screens WO2010106194A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CN2009801088248A CN102119406A (en) 2008-01-11 2009-01-12 Arrangement of current regulators for LED-based flexible video screens
EP09841775A EP2270771A4 (en) 2008-01-11 2009-01-12 Arrangement of current regulators for led-based flexible video screens
MX2010007538A MX2010007538A (en) 2008-01-11 2009-01-12 Arrangement of current regulators for led-based flexible video screens.
US12/812,256 US20110050757A1 (en) 2008-01-11 2009-01-12 Configuration of current regulators for led-based flexible video screens
JP2011504489A JP2011514990A (en) 2008-01-11 2009-01-12 Configuration of LED-based flexible video screen current regulator
RU2010133487/07A RU2486606C2 (en) 2008-01-11 2009-01-12 Current controller system for flexible light-emitting diode video screens
CA2707216A CA2707216A1 (en) 2009-01-12 2009-01-12 Configuration of current regulators for led-based flexible video screens
BRPI0906815-5A BRPI0906815A2 (en) 2008-01-11 2009-01-12 Configuration of current regulators for flexible led display screens
IL206915A IL206915A0 (en) 2008-01-11 2010-07-08 Configuration of current regulators for led-based flexible video screens
IN2921KON2010 IN2010KN02921A (en) 2008-01-11 2010-08-10

Applications Claiming Priority (2)

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ESP200800071 2008-01-11
ES200800071A ES2338962B1 (en) 2008-01-11 2008-01-11 CONFIGURATION OF CURRENT REGULATORS FOR FLEXIBLE VIDEO SCREENS BASED ON LED'S.

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WO2010106194A1 true WO2010106194A1 (en) 2010-09-23

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EP2697790A1 (en) * 2011-04-11 2014-02-19 Aesys S.p.A. Electronic circuit and method for dynamic piloting of light sources in variable message information panels
CN114245171B (en) * 2021-12-15 2023-08-29 百度在线网络技术（北京）有限公司 Video editing method and device, electronic equipment and medium

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CN102119406A (en) 2011-07-06
EP2270771A1 (en) 2011-01-05
US20110050757A1 (en) 2011-03-03
ES2338962B1 (en) 2011-04-04
RU2010133487A (en) 2012-02-20
IL206915A0 (en) 2011-07-31
IN2010KN02921A (en) 2015-05-01
JP2011514990A (en) 2011-05-12
MX2010007538A (en) 2011-01-14
EP2270771A4 (en) 2011-05-04
RU2486606C2 (en) 2013-06-27
BRPI0906815A2 (en) 2015-07-14
ES2338962A1 (en) 2010-05-13

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